F-Day
It can be used in two ways. First, when you were drinking last night than you got up and your day is really fucked up. Second, when you get up and you can feel that your day will be a disaster, you will be lazy, you will not have any responsability and you will be feeling wrinkled.
Today is my F-Day. I won't be able to join you guys of my F-Day.
F-day
Any day where one is completely unbound by obligation or responsibility, be it present or future.
College students will often find the first day of a semester break to be the closest thing to an F-day, despite the impending semester.
National F**k Xbox Day
August 10th is the day to talk completely trash on xbox cause is dodo
Woah its National F**k Xbox Day